Formation of Bragg gratings in optical f
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Meltz, G.; Morey, W. W.; Glenn, W. H.
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Article
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1989
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Optical Society of America
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English
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Bragg gratings have been produced in germanosilicate optical fibers by exposing the core, through the side of the cladding, to a coherent UV two-beam interference pattern with a wavelength selected to lie in the oxygen-vacancy defect band of germania, near 244 nm. Fractional index perturbations of a